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lisp-interpreter.html
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title>Lisp interpreter in Javascript</title>
<link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/3.4.1/build/cssreset/cssreset-min.css">
<link rel="stylesheet" href="base.css" type="text/css" media="screen" />
<meta name="description" content="Lisp interpreter written in javascript" />
</head>
<body>
<!-- page content -->
<div class="content">
<h1>Lisp interpreter in Javascript</h1>
<div class="repl">
<textarea name="" id="history" rows="10" cols="80" tabindex=""></textarea>
<textarea name="" id="input" rows="3" cols="80" tabindex=""></textarea>
<button class="" id="evaluate">Evaluate</button>
</div>
<div class="keywords">
<h2>Keywords</h2>
<pre>
car cdr cons
not and or
>= > <= < = eq
+ - * /
nil list setq if lambda defun
</pre>
</div>
<div class="examples">
<h2>Examples</h2>
<pre>
Factorial
(defun fact (x) (if (<= x 1) 1 (* x (fact (- x 1)))))
(fact 5)
Reverse a list
(defun reverse- (x r)
(if (not (car x)) r (reverse- (cdr x) (cons (car x) r))))
(defun reverse (x) (reverse- x (list)))
(reverse (list 1 2 3 4))
Map a list
(defun mapcar (x f)
(if (not (car x)) (list) (cons (f (car x)) (mapcar (cdr x) f))))
(mapcar (list 1 2 3) (lambda (x) (* x x)))
</pre>
</div>
</div>
<!-- javascrpit -->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript" src="lisp.js"></script>
<script type="text/javascript">
$(init);
</script>
</body>
</html>